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Session Report

Summary:
Test run at: 2017-09-01 09:37:40 GMT
Client Prefix (v4): 83.79.172.x/24
Client AS (v4): 3303 (SWISSCOM)
IPv4 Probes: 131
Client Prefix (v6): 2a02:1205:34xx::/40
Client AS (v6): 3303 (SWISSCOM)
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.
IPv4 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (83.79.172.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
83.79.172.x/24/313303sendto
83.79.172.x/24/303303sendto
83.79.172.x/24/293303sendto
83.79.172.x/24/283303sendto
83.79.172.x/24/273303sendto
83.79.172.x/24/263303sendto
83.79.172.x/24/253303sendto
83.79.172.x/24/243303sendto
83.79.173.x/24/233303sendto
83.79.174.x/24/223303sendto
83.79.168.x/24/213303sendto
83.79.164.x/24/203303sendto
83.79.188.x/24/193303sendto
83.79.140.x/24/183303sendto
83.79.236.x/24/173303sendto
83.79.44.x/24/163303sendto
83.78.172.x/24/153303sendto
83.77.172.x/24/143303sendto
83.75.172.x/24/139158sendto
83.71.172.x/24/125466sendto
83.95.172.x/24/113292sendto
83.111.172.x/24/105384sendto
83.15.172.x/24/95617sendto
83.207.172.x/24/8UNROUTEDsendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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